This is an abridged version of the “Alibaba vs eBay” B-case. The original four-part case series follows Taobao, part of the Alibaba Group – the leading business-to-business (B2B) e-commerce company in China – from 2003 to 2006. The A-case begins in April 2003 as Jack Ma, the 39-year-old CEO of Alibaba, worries. According to the latest market data, eBay, the global leader in online auctions had reached almost total dominance of the local consumer-to-consumer (C2C) market – only about a year after its entry into China. While Alibaba was not active in the Chinese C2C market, and eBay’s expansion did not impact its current business, looking forward, there was cause for concern. What if eBay decided to use its C2C power to attack Alibaba in its traditional B2B domain? Jack wondered if anything could be done to prevent this from happening? The B-case documents how Taobao competes with eBay in China’s C2C market. It describes Taobao’s strategy to increase its market share. The C-case discusses Taobao’s business model. Although they gained market share at the expense of eBay, the question remains—what business model should they adopt so they can make money in the future? The D-case is an update on the competitors’ strategies and the events that took place between 2006 and 2010.